Jolie, Pitt make exhausted appearance in press conference It seems that taking care of six children is taking a toll on one of the world's most glamorous couples. Brad Pitt and Angelina Jolie simply looked like harassed parents when they arrived for a press conference here to promote Angelina's latest film "Changeling", the Daily Mail reported.        The couple looked preoccupied as they posed for photographers, perhaps thinking about their six young children, including baby twins Vivienne and Knox who stayed behind, the paper said.Jolie also hinted about her plan to retire from her acting career to concentrate on parenting her six children. She is also planning to expand her family. "I have a big family and a lot of responsibility at home, and I have the good fortune financially not to have to work all the time, and I just feel privileged that I get to be home a lot. Maybe eventually I'll stop (acting)," she said.        And when asked if the public could expect her to expand her family again, she replied, "Sure you can." The actress, however, became tearful during the press conference as she remembered her mother.        Jolie, whose mother died in January last year after a long battle with cancer, said she had been taught the right values in life by her. "Her name was Marcheline, but we used to call her Marshmallow, as a joke, because she was just the softest, most gentle woman in the world," Jolie said.        The 'Bone Collector' star, who is playing a mother in her latest film, said,"She was really sweet and was never angry - she couldn't swear to save her life. But when it came to her kids, she was really fierce and so this (film) is very much her, her story." "She was the woman I related to, who had that elegance and strength for knowing what was right," an emotional Jolie said while talking about her mother. In the film 'Changeling', directed by Clint Eastwood, Angelina plays a mother in 1920s Los Angeles whose son is kidnapped. When her child is returned to her, she quickly realises that the boy is not her own.        She refuses to accept the claims by the corrupt Los Angeles police department and fights to get her son back. Jolie said the role had especially appealed to her as it was an "inspirational and true story".        "When I first read the script I just couldn't put it down, but then I said no, I'm leaving it," she said.        "I didn't want to get involved with the project because it was too upsetting. But then I couldn't stop talking about her (character). "I found myself sitting with people and wanting them to know about this extraordinary woman."        The 33-year-old also praised director Eastwood and said she had always wanted to work with him. "He is a really good man. He is one of those very fair, strong leaders," she said. (Agencies) ... full story »